I contacted the developers and they said that it is not possible with the theme options, please try to use some other 3 rd part plugins for that, or hire the developer and he will create some codes to get the result.

Thank you for your answer. Do you have a developper documentation about the theme?

I also have another question about database errors. We receive a lot of errors in our log files about a request in a table which seems to don’t exist. Will you solve this issue on next updates of your theme?

The error with the database is not caused by our theme, because the themes don’t have the ability to save some data from your WordPress. It is your hosting/server provider issue, please contact them and they will fix your issue.